<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
    <style type="text/css">
        body, html,#allmap {width: 100%;height: 100%;overflow: hidden;margin:0;font-family:"微软雅黑";}
    </style>
    <script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=YG2iv0eCzo1z6YTsau5pgd24"></script>

    <title>多个标注点沿折线的轨迹运动</title>
</head>
<body>
<div id="allmap"></div>
</body>
</html>
<script type="text/javascript">
    // 百度地图API功能
    var map = new BMap.Map("allmap");
    map.centerAndZoom(new BMap.Point(116.404, 39.915), 15);
    var bounds = null;
    var linesPoints = null;
    var spoi1 = new BMap.Point(116.380967,39.913285);    // 起点1
    var spoi2 = new BMap.Point(116.380967,39.953285);    // 起点2
    var epoi  = new BMap.Point(116.424374,39.914668);    // 终点
    var myIcon = new BMap.Icon("http://lbsyun.baidu.com/jsdemo/img/Mario.png", new BMap.Size(32, 70), {imageOffset: new BMap.Size(0, 0)});
    function initLine(){
        bounds = new Array();
        linesPoints = new Array();
        map.clearOverlays();                                                    // 清空覆盖物
        var driving3 = new BMap.DrivingRoute(map,{onSearchComplete:drawLine});  // 驾车实例,并设置回调
        driving3.search(spoi1, epoi);                                       // 搜索一条线路
        var driving4 = new BMap.DrivingRoute(map,{onSearchComplete:drawLine});  // 驾车实例,并设置回调
        driving4.search(spoi2, epoi);                                       // 搜索一条线路
    }
    function run(){
        for(var m = 0;m < linesPoints.length; m++){
            var pts = linesPoints[m];
            var len = pts.length;
            var carMk = new BMap.Marker(pts[0],{icon:myIcon});
            map.addOverlay(carMk);
            resetMkPoint(1,len,pts,carMk)
        }

        function resetMkPoint(i,len,pts,carMk){
            carMk.setPosition(pts[i]);
            if(i < len){
                setTimeout(function(){
                    i++;
                    resetMkPoint(i,len,pts,carMk);
                },100);
            }
        }

    }
    function drawLine(results){
        var opacity = 0.45;
        var planObj = results.getPlan(0);
        var b = new Array();
        var addMarkerFun = function(point,imgType,index,title){
            var url;
            var width;
            var height
            var myIcon;
            // imgType:1的场合，为起点和终点的图；2的场合为车的图形
            if(imgType == 1){
                url = "http://lbsyun.baidu.com/jsdemo/img/dest_markers.png";
                width = 42;
                height = 34;
                myIcon = new BMap.Icon(url,new BMap.Size(width, height),{offset: new BMap.Size(14, 32),imageOffset: new BMap.Size(0, 0 - index * height)});
            }else{
                url = "http://lbsyun.baidu.com/jsdemo/img/trans_icons.png";
                width = 22;
                height = 25;
                var d = 25;
                var cha = 0;
                var jia = 0
                if(index == 2){
                    d = 21;
                    cha = 5;
                    jia = 1;
                }
                myIcon = new BMap.Icon(url,new BMap.Size(width, d),{offset: new BMap.Size(10, (11 + jia)),imageOffset: new BMap.Size(0, 0 - index * height - cha)});
            }

            var marker = new BMap.Marker(point, {icon: myIcon});
            if(title != null && title != ""){
                marker.setTitle(title);
            }
            // 起点和终点放在最上面
            if(imgType == 1){
                marker.setTop(true);
            }
            map.addOverlay(marker);
        }
        var addPoints = function(points){
            for(var i = 0; i < points.length; i++){
                bounds.push(points[i]);
                b.push(points[i]);
            }
        }
        // 绘制驾车步行线路
        for (var i = 0; i < planObj.getNumRoutes(); i ++){
            var route = planObj.getRoute(i);
            if (route.getDistance(false) <= 0){continue;}
            addPoints(route.getPath());
            // 驾车线路
            if(route.getRouteType() == BMAP_ROUTE_TYPE_DRIVING){
                map.addOverlay(new BMap.Polyline(route.getPath(), {strokeColor: "#0030ff",strokeOpacity:opacity,strokeWeight:6,enableMassClear:true}));
            }else{
                // 步行线路有可能为0
                map.addOverlay(new BMap.Polyline(route.getPath(), {strokeColor: "#30a208",strokeOpacity:0.75,strokeWeight:4,enableMassClear:true}));
            }
        }
        map.setViewport(bounds);
        // 终点
        addMarkerFun(results.getEnd().point,1,1);
        // 开始点
        addMarkerFun(results.getStart().point,1,0);
        linesPoints[linesPoints.length] = b;
    }
    initLine();
    setTimeout(function(){
        run();
    },1500);
</script>
